Tymphany custom OEM surplus drivers group buy

Turntables from ₹16,900.00
Vinay2013 said:
Hi Siva- I connected the BSC and listened few tracks. I observed mid bass and overall bass improved even if speakers are placed far from the wall so it works. Definitely worth it. However, I felt little spark missing in the high frequency. Also, need to increase the volume as compared to no BSC.
Click to expand...

That's correct - BSC actually attenuates the mids and highs (to get the same effect as boosting the lows). So you will need to turn up the volume by ~ +6 dB to get the same mids and highs as earlier, which has the effect of boosting the lows by +6 dB.

Can you please suggest how I should connect the capacitor. Is it the same way I connected the inductor and resistor in the red (+ wire) of speaker. Also is there any need to take care of + and - in these (resistor, inductor & capacitor). Sorry again for the dumb questions.
Click to expand...

All three are non-polar, i.e. have no polarity and can be connected either way around in this application. The cap may be connected in parallel with the L and R, as you did earlier with the L and R.
 
Just got a call from home that my parcel has reached :) (4 nos). Thanks Siva for the prompt shipping. Yet to check the drivers. Will do once I reach home. Will start a seperate thread with T/S specs and also an FR graph.

Cheers,
Venki
 
Hello Linuxguru,

I am interested in these drivers.
Are they still available?
I've PM'ed you. Please check.
 
Hi Guys,

Could check only TS of one drive so far due to lack of dedicated time. Here are the figures. Also attaching the ZMA for those who want to design x-overs. I will post the T/s specs of the rest of the drivers later so that we can average it out.

Buffer[1] Vas Ver 7.01
Completed: Fri Apr 03 07:50:46 2015
Drive level 70.795% [2.495 mA]
Sine,LoZP(LV/LA)->Vas,20 pts
;------------------------------------------------------------------
Re = 4.7696 ohms
Fs = 125.8925 Hz
Zmax = 18.1758 ohms
Qes = 1.7811
Qms = 5.0062
Qts = 1.3137
Le = 0.1267 mH (at 1 kHz)
Diam = 68.0000 mm ( 2.6772 in )
Sd = 3631.6814 mm^2( 5.6291 in^2)
Vas = 1.2479 L ( 0.0441 ft^3)
BL = 2.2546 N/A
Mms = 2.3997 g
Cms = 666.0247 uM/N
Kms = 1501.4459 N/M
Rms = 0.3792 R mechanical
Efficiency = 0.1314 %
Sensitivity= 83.2023 dB @1W/1m
Sensitivity= 85.4484 dB @2.83Vrms/1m
Krm = 3.892E-03 ohms Freq dependent resistance
Erm = 566.301E-03 Rem=Krm*(2*pi*f)^Erm
Kxm = 14.030E-03 Henries Freq dependent reactance
Exm = 482.216E-03 Xem=Kxm*(2*pi*f)^Exm
;------------------------------------------------------------------
Ftest = 51.392 Hz
Ftest/Fms = 0.4082
Test Mass used = 12.0000 g (Equal to 2.4 nickels)
Test Mass (Ft=Fms*0.90) = 0.563 g (Add -11.437g for Ft=113.303)
Test Mass (Ft=Fms*0.75) = 1.866 g (Add -10.134g for Ft=94.419)


ZMA (Sorry could not attach txt file for some reason): >> Copy and save as .ZMA and you can open this in REW (e.g.)

1.000 +4.7676 +0.3238
2.000 +4.7657 +0.5841
10.000 +4.7902 +3.4387
12.092 +4.7945 +4.2397
14.623 +4.8112 +4.9277
17.684 +4.8420 +6.0798
21.384 +4.8599 +7.2426
25.859 +4.9001 +8.7054
31.271 +4.9544 +10.5590
37.816 +5.0338 +12.8166
45.730 +5.1600 +15.6253
55.301 +5.3672 +19.2135
66.874 +5.7460 +23.8461
80.869 +6.5393 +29.7312
97.793 +8.6545 +35.2122
98.013 +8.7466 +35.2364
102.825 +9.8542 +35.4508
102.886 +9.8756 +35.3865
103.452 +10.0107 +35.3897
103.531 +10.0296 +35.3813
103.610 +10.0505 +35.3765
103.769 +10.1058 +35.3184
104.087 +10.2017 +35.2684
105.381 +10.5922 +34.9018
108.001 +11.4694 +33.8372
108.269 +11.6024 +33.6151
117.197 +15.5603 +22.9989
118.259 +16.0500 +20.9901
119.598 +16.6854 +17.5044
122.952 +17.8408 +8.6180
123.024 +17.8602 +8.4918
124.462 +18.0745 +4.2881
125.221 +18.1686 +1.9919
125.604 +18.1909 +0.8288
125.796 +18.2006 +0.2321
125.892 +18.1758 +0.0054
125.988 +18.1937 -0.3416
125.989 +18.1884 -0.2428
126.009 +18.1819 -0.2140
129.141 +17.8163 -8.9892
129.461 +17.7552 -9.6266
132.187 +16.9731 -16.3464
143.008 +12.6969 -31.6139
144.708 +12.1274 -32.7321
151.808 +10.2178 -35.0288
151.813 +10.2086 -35.0938
151.903 +10.1855 -35.0279
152.272 +10.1149 -35.1261
152.505 +10.0667 -35.1408
152.621 +10.0426 -35.1595
152.738 +10.0195 -35.1529
152.740 +10.0135 -35.1412
153.678 +9.8147 -35.2012
155.588 +9.4448 -35.2311
159.455 +8.8065 -34.9389
159.851 +8.7463 -34.8246
184.562 +6.6532 -29.0928
223.187 +5.6628 -20.2285
269.895 +5.3148 -13.2657
326.377 +5.1929 -7.9903
394.681 +5.1759 -3.8022
402.357 +5.1795 -3.4269
477.278 +5.2228 -0.3948
577.161 +5.3045 +2.3359
697.948 +5.4179 +4.7491
844.013 +5.5685 +6.7237
1000.000 +5.7107 +8.0100
1020.646 +5.7215 +8.1155
1234.242 +5.8845 +9.6808
1492.541 +6.0781 +10.7403
1804.896 +6.3087 +11.6473
2182.619 +6.5175 +11.9608
2639.391 +6.7047 +12.2387
3191.754 +6.8638 +12.4922
3859.715 +7.0105 +13.1172
4667.464 +7.1725 +13.8244
5644.257 +7.3468 +14.6352
6825.470 +7.5040 +15.3516
8253.883 +7.6561 +16.6918
9981.230 +7.8390 +18.1504
12070.071 +8.0422 +19.9560
14596.059 +8.2512 +22.2707
15000.000 +8.2799 +22.5992
17650.676 +8.5001 +25.0406
20000.000 +8.7513 +27.3413

Thanks,
Venki
 
Hi All..

tried to simulate a sealed enclosure for these enclosures using parameters posted by venki7744,

Please let me know of any corrections that need to be done, This is my first time for simulation :D , so this might be totally wrong ....

Yellow trace is for 2 drivers sealed

Red trace is for 1 driver sealedsealed sim.jpg





Thanks
Harsha
 
Just a quick note that BSC doesn't seem to be required for a dual-driver Tabaq or similar quarter-wave TL, using either 2x Tymphany 12-ohm drivers in parallel, or 2x Sven 4-ohm drivers in series. I just auditioned it carefully without BSC using a MiniRef amplifier, which is the most neutral amplifier I have on hand. I did A-B comparisons with a pair of commercial JBL LX2001 2-way ported speakers and several other ported/reflex speakers. The dual-driver Tabaq sounds the most natural without BSC.

YMMV for dual-driver *sealed* enclosures, but if you have sufficient cabinet volume you can probably manage fine without BSC. It's easy enough to audition and verify.
 
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Couple of weeks back I made the cabinets for the dual version of these drivers similar to what Linuxguru made it :)

I am yet to install the drivers and hear the same but completed the cabinets yesterday and fully satisfied with the outcome. I now feel that I have improved my DIY skills with this build as I made the front baffle edges curved with planar and sand paper to make them look exactly as what Linuxguru's carpenter did. Got the vinyl wrapping sheet from bijin courtesy "diyaudiocart.com" and very happy with the outcome. Here are the pictures

2qin529.jpg

2z9k4m8.jpg

xdg7m.jpg

2w33uid.jpg
 
The rounded edges and vinyl finish are very professional looking, and the driver cutouts are also very clean and circular. Please also give an update after installing the drivers and auditioning it.
 
linuxguru said:
The rounded edges and vinyl finish are very professional looking, and the driver cutouts are also very clean and circular. Please also give an update after installing the drivers and auditioning it.
Click to expand...

Thanks yes I got the panels cut from my carpenter but the entire build I did it myself including sanding and pasting the vinyls. The driver cutouts I did using the round shaped drill bits which I had to almost the exact diameter of the drivers 78mm. The rounding I tried it for the first time and I hope it has come out neatly and the black vinyl is gelling with my TV as I am going to use it as L/R with my Yamaha 571 receiver and moving the energy satellites to 6/7th channels to make it 7.1 channel.
 
A close friend and fm was kind enough to lend me his pair which I have connected to TV and also music setup.
It uses single drivers each.

For TV the clarity is very good and transparent. Sound is very clean and clear. Bass is just adequate and its presence is felt.
If used for TV then these are very good and give nice clean sound for any decent sized living room.

In sterio too sound is clean and transparent. Still drivers yet to cross 50 hr running so will improve.

The volume needed to be turned higher to drive them to listenable volumes (as compared to my other speakers) which is as expected due to efficiency + TL design.

Overall good value!
Thanks to all who have contributed to this effort!
Regards.
 
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Here are the finished speakers with the drivers installed. Pretty happy with the outcome and they really sound superb especially in HT for movies. Even good with music playback w.r.t vocals. These will make a very good L/C/R speakers for the HT and VFM.

726m0z.jpg
 
keith_correa said:
Apart from the vocals are they are not up to expectations? What is lacking?
Click to expand...

May be I am biased with my Frugal Horns, hence my views. I feel the TABAQs with these drivers lacks the full flow of the music. I somehow do not hear the fullness of the entire range of music that I get to hear from my FHs. The base is less and they lack the punch. At its price point of build I feel its a VFM option for casual local FM radio stations and especially 80s and before music. For slow and old generation music they sound pretty good.
 
manniraj said:
May be I am biased with my Frugal Horns, hence my views. I feel the TABAQs with these drivers lacks the full flow of the music. I somehow do not hear the fullness of the entire range of music that I get to hear from my FHs. The base is less and they lack the punch. At its price point of build I feel its a VFM option for casual local FM radio stations and especially 80s and before music. For slow and old generation music they sound pretty good.
Click to expand...
If the bass is low, there's something wrong. In a TL, there should be no shortage of bass! And if there's less bass, by themselves, they would be unsuited for HT too.
 
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keith_correa said:
If the bass is low, there's something wrong. In a TL, there should be no shortage of bass! And if there's less bass, by themselves, they would be unsuited for HT too.
Click to expand...

As I said I am comparing them with my FHs which give very nice bass and pretty good with all range of music. Presently I am using these TABAQ speakers with my Yamaha 571 receiver and pretty happy with them so far as they have replaced my Energy RC-Micro satellite speakers for L/R and anyway I use a Jamo sub for lows.
 
manniraj said:
Here are the finished speakers with the drivers installed. Pretty happy with the outcome and they really sound superb especially in HT for movies. Even good with music playback w.r.t vocals. These will make a very good L/C/R speakers for the HT and VFM.

726m0z.jpg
Click to expand...
Speakers looks nice.I can see you taking picture ;).
Are those B&W speakers in the background?
 
spirovious said:
Speakers looks nice.I can see you taking picture ;).
Are those B&W speakers in the background?
Click to expand...

Thanks spiro, no I just have my Frugal Horns for pure music and using these new speakers along with Energy RC-Micro for HT. Not sure which background you are referring to. It could be some decorative items hanging at the back which is reflecting in the TV ;)
 
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